Worked sporadically as a pulp fiction writer. He had 6 crime stories
appear in Black Mask from 1933-1936. A story of his was part of a Black
Mask anthology published in 1946 as 'The Hard Boiled Omnibus.'
Thomas Walsh was awarded the Edgar Allan Poe Award by the Mystery Writers of America as the Best First Mystery of 1950 for Nightmare In Manhattan (the first of eleven novels). It was filmed as Union Station the same year.